Common technical standards for domestic valve materials casting copper alloy technical conditions (continued Table 3)

Common technical standards for domestic valve materials casting copper alloy technical conditions (continued Table 3)

Serial number Alloy grade Casting method Mechanical properties, not less than

tensile strength

σ b

MPa (kgf / mm 2 )

Yield Strength

σ 0.2

MPa (kgf / mm 2 )

Elongation

δ 5

%

Brinell hardness

 

HB

14 ZCuAl9Mn2 J 440 (44.9)   20 930
15 ZCuAl9Fe4Ni4Mn2 S 630 (64.3) 250 (25.5) 16 1570
16 ZCuAl10Fe3 S 490 (50.0) 180 (18.4) 13 980 *
J 540 (55.1) 200 (20.4) 15 1080 *
Li, La 540 (55.1) 200 (20.4) 15 1080 *
17 ZCuAl10Fe3Mn2 S 490 (50.0)   15 1080
J 540 (55.1)   20 1175
18 ZCuZn38 S 295 (30.0)   30 590
J 295 (30.0)   30 685
19 ZCuZn25Al16Fe3Mn3 S 725 (73.9) 380 (38.7) 10 1570 *
J 740 (75.5) 400 (40.8) * 7 1665 *
Li, La 740 (75.5) 400 (40.8) 7 1665 *
20 ZCuZn26Al4Fe3Mn3 S 600 (61.2) 300 (30.6) 18 1175 *
J 600 (61.2) 300 (30.6) 18 1275 *
Li, La 600 (61.2) 300 (30.6) 18 1275 *
twenty one ZCuZn31Al2 S 295 (30.0)   12 785
J 390 (39.8)   15 885
twenty two ZCuZn35Al2Mn2Fe2 S 450 (45.9) 170 (17.3) 20 980 *
J 475 (48.4) 200 (20.4) 18 1080 *
Li, La 475 (48.4) 200 (20.4) 18 1080 *
twenty three ZCuZn38Mn2Pb2 S 245 (25.0)   10 685
J 345 (35.2)   18 785
twenty four ZCuZn40Mn2 S 345 (35.2)   20 785
J 390 (39.8)   25 885
25 ZCuZn40Mn3Fe1 S 440 (44.9)   18 980
J 490 (50.0)   15 1080
26 ZCuZn33Pb2 S 180 (18.4) 70 (7.1) * 12 490 *
27 ZCuZn40Pb2 S 220 (22.4)   15 785 *
J 280 (28.6) 120 (12.2) * 20 885 *
28 ZCuZn16Si4 S 345 (35.2) 【Print】 【Close】
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